Paper/Spigot-Server-Patches/0002-Paper-config-files.patch

From 8f7a6bb066e1009c5e436852a08b4642c93d219d Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Mon, 29 Feb 2016 21:02:09 -0600
Subject: [PATCH] Paper config files


diff --git a/src/main/java/com/destroystokyo/paper/PaperCommand.java b/src/main/java/com/destroystokyo/paper/PaperCommand.java
new file mode 100644
index 000000000..cd67ab2bb
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/PaperCommand.java
@@ -0,0 +1,72 @@
+package com.destroystokyo.paper;
+
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.WorldServer;
+import org.bukkit.ChatColor;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.craftbukkit.CraftServer;
+
+import java.io.File;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+
+public class PaperCommand extends Command {
+
+    public PaperCommand(String name) {
+        super(name);
+        this.description = "Paper related commands";
+        this.usageMessage = "/paper [heap | reload | version]";
+        this.setPermission("bukkit.command.paper");
+    }
+
+    @Override
+    public boolean execute(CommandSender sender, String commandLabel, String[] args) {
+        if (!testPermission(sender)) return true;
+
+        if (args.length != 1) {
+            sender.sendMessage(ChatColor.RED + "Usage: " + usageMessage);
+            return false;
+        }
+
+        switch (args[0])  {
+            case "heap":
+                dumpHeap(sender);
+                break;
+            case "reload":
+                doReload(sender);
+                break;
+            case "ver":
+            case "version":
+                org.bukkit.Bukkit.getServer().getCommandMap().getCommand("version").execute(sender, commandLabel, new String[0]);
+                break;
+            default:
+                sender.sendMessage(ChatColor.RED + "Usage: " + usageMessage);
+                return false;
+        }
+
+        return true;
+    }
+
+    private void dumpHeap(CommandSender sender) {
+        File file = new File(new File(new File("."), "dumps"),
+                "heap-dump-" + DateTimeFormatter.ofPattern("yyyy-MM-dd_HH.mm.ss").format(LocalDateTime.now()) + "-server.bin");
+        Command.broadcastCommandMessage(sender, ChatColor.YELLOW + "Writing JVM heap data to " + file);
+        CraftServer.dumpHeap(file);
+        Command.broadcastCommandMessage(sender, ChatColor.GREEN + "Heap dump complete");
+    }
+
+    private void doReload(CommandSender sender) {
+        Command.broadcastCommandMessage(sender, ChatColor.RED + "Please note that this command is not supported and may cause issues.");
+        Command.broadcastCommandMessage(sender, ChatColor.RED + "If you encounter any issues please use the /stop command to restart your server.");
+
+        MinecraftServer console = MinecraftServer.getServer();
+        com.destroystokyo.paper.PaperConfig.init((File) console.options.valueOf("paper-settings"));
+        for (WorldServer world : console.worlds) {
+            world.paperConfig.init();
+        }
+        console.server.reloadCount++;
+
+        Command.broadcastCommandMessage(sender, ChatColor.GREEN + "Paper config reload complete.");
+    }
+}
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
new file mode 100644
index 000000000..3d8ee9ed3
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -0,0 +1,173 @@
+package com.destroystokyo.paper;
+
+import com.google.common.base.Throwables;
+
+import java.io.File;
+import java.io.IOException;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.TimeUnit;
+import java.util.logging.Level;
+import java.util.regex.Pattern;
+
+import net.minecraft.server.MinecraftServer;
+import org.bukkit.Bukkit;
+import org.bukkit.command.Command;
+import org.bukkit.configuration.InvalidConfigurationException;
+import org.bukkit.configuration.file.YamlConfiguration;
+
+public class PaperConfig {
+
+    private static File CONFIG_FILE;
+    private static final String HEADER = "This is the main configuration file for Paper.\n"
+            + "As you can see, there's tons to configure. Some options may impact gameplay, so use\n"
+            + "with caution, and make sure you know what each option does before configuring.\n"
+            + "\n"
+            + "If you need help with the configuration or have any questions related to Paper,\n"
+            + "join us in our IRC channel.\n"
+            + "\n"
+            + "IRC: #paper @ irc.spi.gt ( http://irc.spi.gt/iris/?channels=paper )\n"
+            + "Wiki: https://paper.readthedocs.org/ \n"
+            + "Paper Forums: https://aquifermc.org/ \n";
+    /*========================================================================*/
+    public static YamlConfiguration config;
+    static int version;
+    static Map<String, Command> commands;
+    private static boolean verbose;
+    /*========================================================================*/
+
+    public static void init(File configFile) {
+        CONFIG_FILE = configFile;
+        config = new YamlConfiguration();
+        try {
+            config.load(CONFIG_FILE);
+        } catch (IOException ex) {
+        } catch (InvalidConfigurationException ex) {
+            Bukkit.getLogger().log(Level.SEVERE, "Could not load paper.yml, please correct your syntax errors", ex);
+            throw Throwables.propagate(ex);
+        }
+        config.options().header(HEADER);
+        config.options().copyDefaults(true);
+        verbose = getBoolean("verbose", false);
+
+        commands = new HashMap<String, Command>();
+        commands.put("paper", new PaperCommand("paper"));
+
+        version = getInt("config-version", 13);
+        set("config-version", 13);
+        readConfig(PaperConfig.class, null);
+    }
+
+    protected static void log(String s) {
+        if (verbose) {
+            Bukkit.getLogger().info(s);
+        }
+    }
+
+    public static void registerCommands() {
+        for (Map.Entry<String, Command> entry : commands.entrySet()) {
+            MinecraftServer.getServer().server.getCommandMap().register(entry.getKey(), "Paper", entry.getValue());
+        }
+    }
+
+    static void readConfig(Class<?> clazz, Object instance) {
+        for (Method method : clazz.getDeclaredMethods()) {
+            if (Modifier.isPrivate(method.getModifiers())) {
+                if (method.getParameterTypes().length == 0 && method.getReturnType() == Void.TYPE) {
+                    try {
+                        method.setAccessible(true);
+                        method.invoke(instance);
+                    } catch (InvocationTargetException ex) {
+                        throw Throwables.propagate(ex.getCause());
+                    } catch (Exception ex) {
+                        Bukkit.getLogger().log(Level.SEVERE, "Error invoking " + method, ex);
+                    }
+                }
+            }
+        }
+
+        try {
+            config.save(CONFIG_FILE);
+        } catch (IOException ex) {
+            Bukkit.getLogger().log(Level.SEVERE, "Could not save " + CONFIG_FILE, ex);
+        }
+    }
+
+    private static final Pattern SPACE = Pattern.compile(" ");
+    private static final Pattern NOT_NUMERIC = Pattern.compile("[^-\\d.]");
+    public static int getSeconds(String str) {
+        str = SPACE.matcher(str).replaceAll("");
+        final char unit = str.charAt(str.length() - 1);
+        str = NOT_NUMERIC.matcher(str).replaceAll("");
+        double num;
+        try {
+            num = Double.parseDouble(str);
+        } catch (Exception e) {
+            num = 0D;
+        }
+        switch (unit) {
+            case 'd': num *= (double) 60*60*24; break;
+            case 'h': num *= (double) 60*60; break;
+            case 'm': num *= (double) 60; break;
+            default: case 's': break;
+        }
+        return (int) num;
+    }
+
+    protected static String timeSummary(int seconds) {
+        String time = "";
+
+        if (seconds > 60 * 60 * 24) {
+            time += TimeUnit.SECONDS.toDays(seconds) + "d";
+            seconds %= 60 * 60 * 24;
+        }
+
+        if (seconds > 60 * 60) {
+            time += TimeUnit.SECONDS.toHours(seconds) + "h";
+            seconds %= 60 * 60;
+        }
+
+        if (seconds > 0) {
+            time += TimeUnit.SECONDS.toMinutes(seconds) + "m";
+        }
+        return time;
+    }
+
+    private static void set(String path, Object val) {
+        config.set(path, val);
+    }
+
+    private static boolean getBoolean(String path, boolean def) {
+        config.addDefault(path, def);
+        return config.getBoolean(path, config.getBoolean(path));
+    }
+
+    private static double getDouble(String path, double def) {
+        config.addDefault(path, def);
+        return config.getDouble(path, config.getDouble(path));
+    }
+
+    private static float getFloat(String path, float def) {
+        // TODO: Figure out why getFloat() always returns the default value.
+        return (float) getDouble(path, (double) def);
+    }
+
+    private static int getInt(String path, int def) {
+        config.addDefault(path, def);
+        return config.getInt(path, config.getInt(path));
+    }
+
+    private static <T> List getList(String path, T def) {
+        config.addDefault(path, def);
+        return (List<T>) config.getList(path, config.getList(path));
+    }
+
+    private static String getString(String path, String def) {
+        config.addDefault(path, def);
+        return config.getString(path, config.getString(path));
+    }
+}
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
new file mode 100644
index 000000000..621bf7051
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -0,0 +1,66 @@
+package com.destroystokyo.paper;
+
+import java.util.List;
+
+import org.bukkit.Bukkit;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.spigotmc.SpigotWorldConfig;
+
+import static com.destroystokyo.paper.PaperConfig.log;
+
+public class PaperWorldConfig {
+
+    private final String worldName;
+    private final SpigotWorldConfig spigotConfig;
+    private final YamlConfiguration config;
+    private boolean verbose;
+
+    public PaperWorldConfig(String worldName, SpigotWorldConfig spigotConfig) {
+        this.worldName = worldName;
+        this.spigotConfig = spigotConfig;
+        this.config = PaperConfig.config;
+        init();
+    }
+
+    public void init() {
+        log("-------- World Settings For [" + worldName + "] --------");
+        PaperConfig.readConfig(PaperWorldConfig.class, this);
+    }
+
+    private void set(String path, Object val) {
+        config.set("world-settings.default." + path, val);
+        if (config.get("world-settings." + worldName + "." + path) != null) {
+            config.set("world-settings." + worldName + "." + path, val);
+        }
+    }
+
+    private boolean getBoolean(String path, boolean def) {
+        config.addDefault("world-settings.default." + path, def);
+        return config.getBoolean("world-settings." + worldName + "." + path, config.getBoolean("world-settings.default." + path));
+    }
+
+    private double getDouble(String path, double def) {
+        config.addDefault("world-settings.default." + path, def);
+        return config.getDouble("world-settings." + worldName + "." + path, config.getDouble("world-settings.default." + path));
+    }
+
+    private int getInt(String path, int def) {
+        config.addDefault("world-settings.default." + path, def);
+        return config.getInt("world-settings." + worldName + "." + path, config.getInt("world-settings.default." + path));
+    }
+
+    private float getFloat(String path, float def) {
+        // TODO: Figure out why getFloat() always returns the default value.
+        return (float) getDouble(path, (double) def);
+    }
+
+    private <T> List getList(String path, T def) {
+        config.addDefault("world-settings.default." + path, def);
+        return (List<T>) config.getList("world-settings." + worldName + "." + path, config.getList("world-settings.default." + path));
+    }
+
+    private String getString(String path, String def) {
+        config.addDefault("world-settings.default." + path, def);
+        return config.getString("world-settings." + worldName + "." + path, config.getString("world-settings.default." + path));
+    }
+}
diff --git a/src/main/java/net/minecraft/server/DedicatedServer.java b/src/main/java/net/minecraft/server/DedicatedServer.java
index 2e72afae2..5e6a7b9e4 100644
--- a/src/main/java/net/minecraft/server/DedicatedServer.java
+++ b/src/main/java/net/minecraft/server/DedicatedServer.java
@@ -184,6 +184,10 @@ public class DedicatedServer extends MinecraftServer implements IMinecraftServer
             org.spigotmc.SpigotConfig.init((File) options.valueOf("spigot-settings"));
             org.spigotmc.SpigotConfig.registerCommands();
             // Spigot end
+            // Paper start
+            com.destroystokyo.paper.PaperConfig.init((File) options.valueOf("paper-settings"));
+            com.destroystokyo.paper.PaperConfig.registerCommands();
+            // Paper end
 
             DedicatedServer.LOGGER.info("Generating keypair");
             this.a(MinecraftEncryption.b());
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index f5d387511..fd204ad7a 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -127,6 +127,8 @@ public abstract class World implements IBlockAccess {
     private int tickPosition;
     public final org.spigotmc.SpigotWorldConfig spigotConfig; // Spigot
 
+    public final com.destroystokyo.paper.PaperWorldConfig paperConfig; // Paper
+
     public final SpigotTimings.WorldTimingsHandler timings; // Spigot
     private boolean guardEntityList; // Spigot
     public static boolean haveWeSilencedAPhysicsCrash;
@@ -149,6 +151,7 @@ public abstract class World implements IBlockAccess {
 
     protected World(IDataManager idatamanager, WorldData worlddata, WorldProvider worldprovider, MethodProfiler methodprofiler, boolean flag, ChunkGenerator gen, org.bukkit.World.Environment env) {
         this.spigotConfig = new org.spigotmc.SpigotWorldConfig( worlddata.getName() ); // Spigot
+        this.paperConfig = new com.destroystokyo.paper.PaperWorldConfig(worlddata.getName(), this.spigotConfig); // Paper
         this.generator = gen;
         this.world = new CraftWorld((WorldServer) this, gen, env);
         this.ticksPerAnimalSpawns = this.getServer().getTicksPerAnimalSpawns(); // CraftBukkit
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index e21fb9bd7..d7af2c00f 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -691,6 +691,7 @@ public final class CraftServer implements Server {
         }
 
         org.spigotmc.SpigotConfig.init((File) console.options.valueOf("spigot-settings")); // Spigot
+        com.destroystokyo.paper.PaperConfig.init((File) console.options.valueOf("paper-settings")); // Paper
         for (WorldServer world : console.worlds) {
             world.worldData.setDifficulty(difficulty);
             world.setSpawnFlags(monsters, animals);
@@ -706,6 +707,7 @@ public final class CraftServer implements Server {
                 world.ticksPerMonsterSpawns = this.getTicksPerMonsterSpawns();
             }
             world.spigotConfig.init(); // Spigot
+            world.paperConfig.init(); // Paper
         }
 
         pluginManager.clearPlugins();
@@ -713,6 +715,7 @@ public final class CraftServer implements Server {
         resetRecipes();
         reloadData();
         org.spigotmc.SpigotConfig.registerCommands(); // Spigot
+        com.destroystokyo.paper.PaperConfig.registerCommands(); // Paper
         overrideAllCommandBlockCommands = commandsConfiguration.getStringList("command-block-overrides").contains("*");
 
         int pollCount = 0;
@@ -1766,4 +1769,23 @@ public final class CraftServer implements Server {
     {
         return spigot;
     }
+
+    // Paper start
+    @SuppressWarnings({"rawtypes", "unchecked"})
+    public static void dumpHeap(File file) {
+        try {
+            if (file.getParentFile() != null) {
+                file.getParentFile().mkdirs();
+            }
+
+            Class clazz = Class.forName("com.sun.management.HotSpotDiagnosticMXBean");
+            javax.management.MBeanServer server = java.lang.management.ManagementFactory.getPlatformMBeanServer();
+            Object hotspotMBean = java.lang.management.ManagementFactory.newPlatformMXBeanProxy(server, "com.sun.management:type=HotSpotDiagnostic", clazz);
+            java.lang.reflect.Method m = clazz.getMethod("dumpHeap", String.class, boolean.class);
+            m.invoke(hotspotMBean, file.getPath(), true);
+        } catch (Throwable t) {
+            Bukkit.getLogger().severe("Could not write heap to " + file);
+        }
+    }
+    // Paper end
 }
diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
index a151451d5..0c5862a3f 100644
--- a/src/main/java/org/bukkit/craftbukkit/Main.java
+++ b/src/main/java/org/bukkit/craftbukkit/Main.java
@@ -126,6 +126,14 @@ public class Main {
                         .defaultsTo(new File("spigot.yml"))
                         .describedAs("Yml file");
                 // Spigot End
+
+                // Paper Start
+                acceptsAll(asList("paper", "paper-settings"), "File for paper settings")
+                        .withRequiredArg()
+                        .ofType(File.class)
+                        .defaultsTo(new File("paper.yml"))
+                        .describedAs("Yml file");
+                // Paper end
             }
         };
 
diff --git a/src/main/java/org/spigotmc/SpigotWorldConfig.java b/src/main/java/org/spigotmc/SpigotWorldConfig.java
index 01e73eb89..0b66f5e35 100644
--- a/src/main/java/org/spigotmc/SpigotWorldConfig.java
+++ b/src/main/java/org/spigotmc/SpigotWorldConfig.java
@@ -39,31 +39,31 @@ public class SpigotWorldConfig
         config.set( "world-settings.default." + path, val );
     }
 
-    private boolean getBoolean(String path, boolean def)
+    public boolean getBoolean(String path, boolean def)
     {
         config.addDefault( "world-settings.default." + path, def );
         return config.getBoolean( "world-settings." + worldName + "." + path, config.getBoolean( "world-settings.default." + path ) );
     }
 
-    private double getDouble(String path, double def)
+    public double getDouble(String path, double def)
     {
         config.addDefault( "world-settings.default." + path, def );
         return config.getDouble( "world-settings." + worldName + "." + path, config.getDouble( "world-settings.default." + path ) );
     }
 
-    private int getInt(String path, int def)
+    public int getInt(String path, int def)
     {
         config.addDefault( "world-settings.default." + path, def );
         return config.getInt( "world-settings." + worldName + "." + path, config.getInt( "world-settings.default." + path ) );
     }
 
-    private <T> List getList(String path, T def)
+    public <T> List getList(String path, T def)
     {
         config.addDefault( "world-settings.default." + path, def );
         return (List<T>) config.getList( "world-settings." + worldName + "." + path, config.getList( "world-settings.default." + path ) );
     }
 
-    private String getString(String path, String def)
+    public String getString(String path, String def)
     {
         config.addDefault( "world-settings.default." + path, def );
         return config.getString( "world-settings." + worldName + "." + path, config.getString( "world-settings.default." + path ) );
-- 
2.13.0